Q70
What is the function of a ventilation raise?
A.
Ore hoisting
B.
Drainage channel
C.
Personnel transport
D.
Air circulation
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Ventilation raise is a vertical opening used for airflow.The correct answer is: Air circulationIt allows fresh air to enter and contaminated air to exit.Essential for maintaining breathable air underground.